Curve Modifier does not work when used in a Background scene #40556

New Issue

Witold Jaworski · 2014-06-09T21:22:49+02:00

Witold Jaworski commented

2014-06-09 21:22:49 +02:00

System Information
platform: b'Windows 8.1:64bit'

renderer: 'GeForce GT 740M/PCIe/SSE2'
vendor: 'NVIDIA Corporation'
version: '4.4.0'

Blender Version
Broken:
Blender version 2.70 (sub 0), branch b'master', commit date b'2014-04-10' b'11:49', hash b'f93bc76', b'Release'
build date: b'2014-04-11', b'06:43:29'

Worked: I am not sure, but probably one of the Blender 2.6x (however, the same error is in 2.69, I have checked it)

Short description of error
Curve modifier does not work when applied to a mesh used in a background scene.
(When you switch to this background scene, it works).

Exact steps for others to reproduce the error

Open enclosed file curves2.blend
Note that the second tube (from Background scene) is straight (which is wrong, I will show it within a moment)
Switch to the Background scene
Switch back to Foreground scene - note that the second tube (from Background scene) is curved (which is OK)

Comment: in the case of curves1.blend file the Foreground scene uses the Background scene as the background. In the scene
Background there are clones of the objects from the Foreground scene. They should be identical, but it depends on the scene you open as the{F93703} first.

A second case (extracted from a real model) where switching scenes does not help (I suppose that it is related{F93704} to the same bug). It contains two identical clones of an airplane exhaust stack:

Open enclosed file curves3.blend. It contains two scenes: "160" and "316". Scene "316" is set as the background scene of scene "160"
Note, that the upper object (coming from scene "316") is straight (bad), while the lower object (coming from scene "160") is curved (OK);
Switch to scene "316". Note that the object becomes curved (it looks OK now)
Switch back to scene "160". Unlike in curves2.blend, it does not help - the object from scene "316" is straight again.

**System Information** platform: b'Windows 8.1:64bit' renderer: 'GeForce GT 740M/PCIe/SSE2' vendor: 'NVIDIA Corporation' version: '4.4.0' **Blender Version** Broken: Blender version 2.70 (sub 0), branch b'master', commit date b'2014-04-10' b'11:49', hash b'f93bc76', b'Release' build date: b'2014-04-11', b'06:43:29' Worked: I am not sure, but probably one of the Blender 2.6x (however, the same error is in 2.69, I have checked it) **Short description of error** Curve modifier does not work when applied to a mesh used in a background scene. (When you switch to this background scene, it works). **Exact steps for others to reproduce the error** 1. Open enclosed file curves2.blend 2. Note that the second tube (from Background scene) is straight (which is wrong, I will show it within a moment) 3. Switch to the Background scene 4. Switch back to Foreground scene - note that the second tube (from Background scene) is curved (which is OK) Comment: in the case of curves1.blend file the Foreground scene uses the Background scene as the background. In the scene Background there are clones of the objects from the Foreground scene. They should be identical, but it depends on the scene you open as the{[F93703](https://archive.blender.org/developer/F93703/curves2.blend)} first. A second case (extracted from a real model) where switching scenes does not help (I suppose that it is related{[F93704](https://archive.blender.org/developer/F93704/curves3.blend)} to the same bug). It contains two identical clones of an airplane exhaust stack: 1. Open enclosed file curves3.blend. It contains two scenes: "160" and "316". Scene "316" is set as the background scene of scene "160" 2. Note, that the upper object (coming from scene "316") is straight (bad), while the lower object (coming from scene "160") is curved (OK); 3. Switch to scene "316". Note that the object becomes curved (it looks OK now) 4. Switch back to scene "160". Unlike in curves2.blend, it does not help - the object from scene "316" is straight again.

Witold Jaworski commented

2014-06-09 21:22:49 +02:00

Changed status to: 'Open'

Witold Jaworski commented

2014-06-09 21:22:49 +02:00

Added subscriber: @WitoldJaworski

Witold Jaworski commented

2014-06-09 21:47:03 +02:00

I can see that I embedded files in random places of this text - excuse me, this is my first bug report on this new platform. Here they are:
curves2.blend
curves3.blend

I can see that I embedded files in random places of this text - excuse me, this is my first bug report on this new platform. Here they are: [curves2.blend](https://archive.blender.org/developer/F93703/curves2.blend) [curves3.blend](https://archive.blender.org/developer/F93704/curves3.blend)

Witold Jaworski commented

2014-06-13 13:15:46 +02:00

I have checked that this problem remains in the latest testbuild of Blender 2.71:

version 2.70 (sub 5), branch b'HEAD', commit date b'2014-05-27' b'14:09', hash b'517094a', b'Release'
build date: b'2014-05-27', b'19:17:01'

I have checked that this problem remains in the latest testbuild of Blender 2.71: version 2.70 (sub 5), branch b'HEAD', commit date b'2014-05-27' b'14:09', hash b'517094a', b'Release' build date: b'2014-05-27', b'19:17:01'

Witold Jaworski commented

2014-06-20 18:45:49 +02:00

I have checked that this problem remains in the Blender 2.71 RC2:

version 2.71 (sub 0), branch b'master', commit date b'2014-06-16' b'09:48', hash b'a19c1be', b'Release'
build date: b'2014-06-16', b'14:21:42'

I have checked that this problem remains in the Blender 2.71 RC2: version 2.71 (sub 0), branch b'master', commit date b'2014-06-16' b'09:48', hash b'a19c1be', b'Release' build date: b'2014-06-16', b'14:21:42'

Lukas Tönne self-assigned this 2014-07-01 09:58:12 +02:00

blender-admin commented

2014-07-01 13:46:55 +02:00

This issue was referenced by 61e5f81e37

This issue was referenced by 61e5f81e37d5365ebb9da49ea9b6f62f4110d054

Sergey Sharybin commented

2014-07-01 13:48:48 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2014-07-01 13:48:48 +02:00

Sergey Sharybin commented

2014-07-01 13:48:48 +02:00

Closed by commit 61e5f81e37.

Closed by commit 61e5f81e37.

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Curve Modifier does not work when used in a Background scene #40556